cojones vs manliness

cojones

noun
  • Synonym of balls, the male genitalia and courage, masculinity, &c. 

manliness

noun
  • Male genitals. 

  • The quality of being manly; the set of qualities, traits and abilities considered appropriate to men (as opposed to women or children); similarity to a man. 

  • Humanity, the quality of being human. 

How often have the words cojones and manliness occurred in a corpus of books? (source: Google Ngram Viewer )